Home / 127,999.20-176,644.24-71,410.40

Finding the Fourth Proportional to 127,999.20, 176,644.24 and 71,410.40

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Solution

The fourth proportional to 127,999.20, 176,644.24 and 71,410.40 is: 98,549.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.20 : 176,644.24 = 71,410.40 : x
  2. Step 2: Convert to fraction form
    127,999.20/176,644.24 = 71,410.40/x
  3. Step 3: Cross multiply
    127,999.20x = 176,644.24 × 71,410.40
  4. Step 4: Simplify right side
    127,999.20x = 12,614,235,836.10
  5. Step 5: Solve for x
    x = 12,614,235,836.10/127,999.20
  6. Step 6: Final answer
    x = 98,549.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.